Robert Downey Jr. and his wife, Susan Downey, have welcomed a daughter. People confirms that Susan gave birth to the couple's little girl in LA. She joins the couple's 2-year-old son, Exton Elias Downey, and Robert's 21-year-old son, Indio, from a previous marriage. The Iron Man star has yet to comment on the news, but he has been busy on his official Facebook page, sharing Avengers memes and promoting the Make-a-Wish foundation. The couple announced that Susan was pregnant back in July.